Ionic strength - Study guides, Class notes & Summaries

a cation is bonded with 8 anions. what is the shape of the volume enclosed by the surrounding anions (coordination polyhedron)? - ️️cube what are crystallographic axes? - ️️Three of four lines parallel to the major lattice planes whose origin lies in the center of the crystal. what are the building blocks of minerals? - ️️ions what is a cation? - ️️an atom that has lost at least one electron. this is a ball and stick representation of a silica tetrahedron. which ion represe...

Biochemistry WGU OA 2022 Questions With Answers. Amino Acid backbone consists of Ans - 1. amino group 2. carboxyl group 3. alpha carbon 4. R group Amino group: looks likes/consists of Ans - NH3+ Carboxyl group looks like/consists of Ans - cooAlpha carbon looks like/consists of Ans - CH The three Amino acid categories Ans - 1. hydrophobic (nonpolar) 2. polar 3. charged Hydrophobic Amino Acids Ans - non polar afraid of h20 usually in the middle/core of the protein contains H + C... C-C...

(Lecture 3-5) A water contains two nitrogen species. The concentration of NH3 is 30 mg/L NH3, and the concentration of NO3 - is 5 mg/L NO3 - . What is the total nitrogen concentration in units of mg N/L? Correct Answer-25.8 mg N/L (Lecture 3-5) What pH is required to reduce a high concentration of dissolved Mg2+ to 43 mg/L? Ksp for the following reaction is 10-11.16. Mg(OH)2(s) Mg2+ + 2OH Ksp = 10-11.16 Correct Answer-Ph=9.79 (Lecture 3-5) How long will it take the carbon monoxide (CO) con...

ENCN281 Test Questions & Answers 2024/2025 Normality - ANSWERSmass/volume = eq/L EW - ANSWERSMW/Z - [C] = EW*N, N1V1=N2V2 Z value - ANSWERSAcids and Bases: Stoichiometric coefficent Salts: Charge pH - ANSWERS-log[H+] Alkalinity measurement - ANSWERSAlk(mg/L as CaCO3) = (A*N/mL sample) * 50000 Water Softening - ANSWERS- removal of calcium via precipitation as CaCo3 - addition of lime (Ca(OH)2) Alkalinity Curve - ANSWERS- Exponential flattens: Adding acid but pH stable, b...

Lattice energy - - The enthalpy change when 1 mole of ionic compound is formed from its gaseous ions under standard conditions - It is the energy given out when ions of opposite charges comes together to form an ionic lattice Lattice energy is endothermic or exothermic? - - It is always exothermic because bonds are being formed (ionic bond) between oppositely charged ions, not broken Equation showing the formation of NaCl lattice - - Na^+(g) + Cl^-(g) > NaCl(s) The state of the opposite...

NUR 231 Exam S2 2024 Questions With 100% Correct Answers Most drugs are chemically modified in the body. Which organ is the major site of drug metabolism? A. Stomach B. Lungs C. Liver D. Kidney C. Liver Which chemical bond is the weakest? A. Non-polar covalent bond B. Ionic bond C. Polar covalent bond D. Hydrogen bond D. Hydrogen A 55 year-old male with a 30year history of smoking is examined for respiratory disturbance. Examination of his airway (bronchial) reveals that...

in solving for the energy present in an ionic bond, positive values of E are attractive, where negative values for E are repulsive. TRUE OF FALSE - ️️false carbohydrates- repeating units and covalent linkage - ️️repeating units= nucleotide, monosaccharide covalent linkage= glycosidic bond lipids- repeating units and covalent linkage - ️️repeating units= none covalent linkage= none proteins- repeating units and covalent linkage - ️️repeating units= amino acid covalent link...

Portage Learning CHEM 210 exams 1-8 and final exam Question 1 3 / 3 pts True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. True Correct! False Question 2 3 / 3 pts True or False: Biomolecules can have only two functional groups. True Correct! False Question 3 3 / 3 pts True or False: The following functional group is an alcohol. True Correct! False Question 4 3 / 3 pts True or False: In ...

IB Chemistry Topic 5 Latest Update Graded A+ Enthalpy The amount of heat released (exothermic) or absorbed (endothermic) during a chemical reaction (the energy needed for the reaction to occur) This can be lowered with the presence of a catalyst. Change in Enthalpy Hproducts -Hreactants Specific heat equation c= q in Joules (or Change in H)/mass(g)(change in temp) Specific heat of water 4.18 J/gdegreesC **NOTE: Usually in kJ Endothermic v. Exothermic Endothermic: Absorbing e...

MRSO Exam - Questions and Answers (Complete Solutions) Which of the following are burn risks associated with an MRI if precautions are not taken? A. ECG B. Pulse oximeter C. Blood pressure D. ECG and pulse oximeter If a patient with a GFR of 15 has an MR ankle scan ordered with and without contrast and the technologist administers the contrast as ordered, who is at fault in the eyes of the court? A. Technologist B. Radiologist C. Ordering physician D. Patient What does gadolinium contrast medi...